so consider an aarp medicare supplement insurance plan, insured by unitedhealthcare insurance company. like all standardized medicare supplement plans, they pick up some of what medicare doesn't pay. and could save you in out-of-pocket medical costs every year. call today to request a free decision guide. with this type of plan, you'll be able to visit any doctor or hospital that accepts medicare patients... plus, there are no networks, and you'll never need a referral to see a specialist. if you're thinking about your options, call today. when you call, request your free decision guide. and find the aarp medicare supplement plan that may be right for you. >>> welcome back to "squawk box" on cnbc. i'm courtney reagan. i want to get you up to speed on walmart. it released quarterly earnings in the company's 8k filing something was noted we have not seen before, inquiries or investigations regarding fcpa violations have been in a number of foreign operations including but not limited to brazil, china and india. previously we knew that these investigations were going on in mexico, now it